SIR,--My last letters were of the 31st of December, and 9th of January; since which last date, I have been honored with yours of December the 13th and 14th. I shall pay immediate attention to your instructions relative to the South Carolina frigate. I had the honor of informing you of an improvement in the art of coining, made here by one Drost, and of sending you, by Colonel Franks, a specimen of his execution in gold and silver. I expected to have sent also a coin of copper. The enclosed note from Drost will explain the reason why this was not sent. It will let you see also, that he may be employed; as I suppose he is not so certain as he was of being engaged here. Mr. Grand, who knows him, gives me reason to believe he may be engaged reasonably. Congress will decide whether it be worth their attention. In some of my former letters, I suggested an opportunity of obliging this court, by borrowing as much money in Holland as would pay the debt due here, if such a loan could be obtained; as to which, I was altogether ignorant. To save time, I wrote to Mr. Dumas, to know whether he thought it probable a loan could be obtained, enjoining on him the strictest secrecy, and informing him I was making the inquiry merely of my own motion, and without instruction. I enclose you his answer. He thinks purchasers of the debt could be found, with a sacrifice of a small part of the capital, and a postponement be obtained of some of the first reimbursements. The proposition by him, for an immediate adoption of this measure by me, was probably urged on his mind by a desire to serve our country, more than a strict attention to my duty, and the magnitude of the object. I hope, on the contrary, that if it should be thought worth a trial, it may be put into the hands of Mr. Adams, who knows the ground, and is known there, and whose former successful negotiations in this line, would give better-founded hopes of success on this occasion.